I have a 04. 5 600 48re and am looking to upgrade the valve body. I will eventually put a tuner back in, but for now it's stock. I drive 50% solo, and 50% towing about 12k. I've been looking at the DTT, BD, GOEREND, SUNCOAST, ATS, AND HTS. I've narrowed it down to the GOEREND or SUNCOAST based...